-
Sugano, I.: ¬The study of criteria for evaluating OPACs as information retrieval systems (1996)
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- Abstract
- Most of the criteria proposed to date for the evaluation of OPACs focus on evaluation of their retrieval function. Argues that the storage function is more important because the quality of information retrieval systems is dependent on the quality of stored information as well as the description and depth of indexing of stored information. States that OPACs should therefore be evaluated from the perspectives of both storage and retrieval functions. Examines 4 studies on criteria for evaluating OPACs and suggests a new evaluation framework based on the work of C.R. Hildreth
- Date
- 29. 7.1998 10:51:23
-
Shimo, Y.: Indexing and retrieval methods of moving image database for television news (1995)
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- Abstract
- Discusses indexing methods for moving graphical images and suggests the use of the new indexing language, the Moving Picture Description Language (MPDL) which has the following 7 frames: subject, time, location, object, characteristics, actions, and sensibility. MPDL allows indexers to assign one or more indexing terms to each frame. The retrieval experiment used 110 video images obtained from television news indexed by MPDL and other indexing methods and revealed that MPDL was the superior method. Suggests that MPDL presents many opportunities for improving the indexing and retrieval of the moving graphical image
-
Kim, S.Y.: Search strategy, search tactics, moves (1995)
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- Abstract
- The terms search strategy, search tactics, and moves are used to refer to interaction between an information retrieval system and the user. Examines papers using search strategy, search tactics, moves and analyzes the meaning of these terms. Suggests the need to use strategy and moves in information seeking studies
-
Hirawa, M.: Role of keywords in the network searching era (1998)
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- Abstract
- A survey of Japanese OPACs available on the Internet was conducted relating to use of keywords for subject access. The findings suggest that present OPACs are not capable of storing subject-oriented information. Currently available keyword access derives from a merely title-based retrieval system. Contents data should be added to bibliographic records as an efficient way of providing subject access, and costings for this process should be estimated. Word standardisation issues must also be addressed
- Source
- Igaku Toshokan (Journal of the Japan Medical Library Association). 45(1998) no.2, S.222-227
-
Kim, P.K.: ¬An automatic indexing of compound words based on mutual information for Korean text retrieval (1995)
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- Abstract
- Presents an automatic indexing technique for compound words suitable for an agglutinative language, specifically Korean. Discusses some construction conditions for compound words and the rules for decomposing compound words to enhance the exhaustivity of indexing, demonstrating that this system, mutual information, enhances both the exhaustivity of indexing and the specifity of terms. Suggests that the construction conditions and rules for decomposition presented may be used in multilingual information retrieval systems to translate the indexing terms of the specific language into those of the language required
- Source
- Library and information science. 1995, no.34, S.29-38
-
Klein, R.D.: ¬The problem of cataloguing world literature using the Nippon Decimal Classification (1994)
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- Abstract
- The Nippon Decimal Classification (NDC) system, extensively used in Japanese libraries, was devised in 1929. It is difficult to use NDC to classify world literature, such as fiction in English by non American, non British writers. This is not necessarily straightforward in other classification schemes but a survey of 40 Japanese university libraries, of which 24 responded, showed remarkable inconsistencies in the treatment of 22 world literature authors. NDC clearly needs updating to deal with this problem
-
Takeda, N.: Problems in hierarchical structures in thesauri : their influences on the results of information retrieval (1994)
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- Abstract
- In online retrieval search results do not always match the intent in spite of using correct keywords (descriptors). One of the causes of this problem is found in the hierarchical structures of the thesaurus, which often contains relations between broader and narrower concepts, the opposite of which is not necessarily true. Some examples are described from 2 thesauri, MeSH and JICST. In these cases searchers need to make an effort to increase precision
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Hosono, K.: Information retrieval functions in digital libraries (1996)
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- Abstract
- Information retrieval functions in digital libraries have a different context from those which apply to searching commercial databases or OPACs. Different methods of browsing in this context are described, but the retrieval function should also include ordinary Boolean searching. Conversion of printed materials to electronic format using OCR can result in errors, which may cause problems for keyword searching. The n-gram method of approximate or fuzzy matching to reduce this problem is described
-
Suzuki, Y.: Partial information and its information structure (1995)
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- Abstract
- Almost all information systems have their own logic. Differentiates between classical and non classical logic, the main example of which is intuitionistic logic which was created to treat partial information. Explains this, discusses the information structure based on intuitionalistic logic, and introduces an intuitionistic information retrieval system. This work represents an introduction to the development of the general theory of partial information and the theory of information retrieval systems which can treat partial information
-
Voshida, K.: ¬A study on improving subject access to the OPAC : a survey of catalogue use comparing an OPAC and a card catalogue in a private university library (1994)
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- Abstract
- Describes a study conducted to compare the use of a new OPAC with that of the card catalogue looking primarily at the area of subject access. Library science students at a private university were asked to respond to questions concerning: the number of subject searches and searches for specific items that they carried out on the OPAC and on the card catalogue; the success rate of the catalogue searches; how the search was carried out (classification number or keywords); librarian assistance required; and knowledge of the Nippon Decimal Classification. Results revealed that while there was an increase in the number of users as a result of the introduction of OPAC facilities, there were certain aspects which required attention such as the area of subject searches
- Source
- Annals of Japan Society of Library Science. 40(1994) no.2, S.71-82
-
Ito, J.: Bibliographic structure : a frame of reference for bibliographic relationships (1994)
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- Abstract
- Attempts to provide a theoretical rationale for the taxonomy of bibliographic relationships between a given work and its related bibliographic entities. Examines the bibliographic structure of the document carrying the messages in terms of their bibliographic functions of use and preservation, since the most common bibliographic relationships are normally revealed within the document itself. Defines the bibliographic characteristics of the document from the perspective of an analysis of the pattern of their structural elements. Presents 4 dimensions of the bibliographic structure as a frame of reference for the categorisation of bibliographic relationships, together with their subordinate types of equivalent relationships, focusing on common structural patterns revealed with in each entity itself
- Source
- Annals of Japan Society of Library Science. 40(1994) no.4, S.160-172
-
Ueda, S.: Online public access catalogues (OPACs) of university libraries in Japan (1995)
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- Abstract
- Reports results of a postal survey of the use of OPACs in Japanese university libraries based upon an 84.9% return rate. These revealed that 60.4% of university libraries used OPACs, that most libraries were linked to the automated circulation system, but that only 6.5% had Internet connection
- Source
- Annals of Japan Society of Library Science. 41(1995) no.2, S.81-88
-
Anzai, H.; Yamamoto, T.; Ishizuka, H.: Experimental service of cataloguing database through WWW (1996)
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- Abstract
- An information retrieval system for a cataloguing database through the WWW is developed, and experimentally served to Japan MARC and ULIS (Univeristy of Library and Information Science) OPAC data. Since Japanese words are not separated by obvious delimiters, ensuring the same segmentation between the query and the database is a problem. The present system solves the problem by using the multiple hash screening technique for processing both book titles and query strings, based on the same dictionary and using similar algorithms. Database management is handled by ADABAS, reducing management chores and and response time. The effectiveness of the multiple hash screening technique for a Japanese text based information system is examined, and the limitation of the Web's hypertext environment for a bibliographic information retrieval service is discussed
-
Watanabe, T.: ¬An experimental OPAC system using NDC8 to improve subject access (1994)
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- Abstract
- Description of an attempt to improve OPAC subject access at Kobe University Library using Nippon Decimal Classification, 8th ed. (NDC8). Examines the theoretical aspects of using a classification for subject searching, then explains the Kobe system. Using the NDC8 machine-readable data file, a database was created for the OPAC, incorporating class numbers and subject headings. Difficulties arise from subdivisions and the structure of NDC8 itself, but it is an important area for development
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Kawamura, K.; Kita, K.; Shiba, M.: Prospects for the Japanese version of the Broad System of Ordering : the design and uses of machine-readable form (1996)
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- Abstract
- Describes the ongoing project for the creation of a Japanese version of the BSO. Translation of the original English BSO into Japanese was completed in April 1995. BSO-mrJ has 3 components: a standardized MARC format for data exchange; an object-oriented database; and a device for human-recognizable classification output
- Date
- 29. 8.1997 18:58:16
-
Ito, J.: Bibliographic structure : focusing on the idea of equivalence (1996)
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- Abstract
- Examines the conceptual structure of bibliographic relationships between a work and its related bibliographic entities in terms of the idea of equivalence as a mathematical concept. Bibliographic entities, such as the work, the text, the edition, and the printing, are also considered as functional foci resulting from data elements contributed by authors, translators, editors and publishers. Examines 4 types of dominant bibliographic relationships focusing on common structural patterns revealed within each entity
- Date
- 29. 8.1997 18:58:16
-
Matsubayashi, M.: ¬The German cataloging rules (RAK) : an introduction and annotated bibliography (1996)
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- Abstract
- Provides an explpanation of the German cataloguing rules (RAK) focusing on conceptual rules and describes their current situation and the likely nature of future revisions. The special characteristics of RAK are the clearly defined 'basic bibliographic concepts (Grundbegriffe)' as literary units and the related concepts of item (Vorlage), edition (Ausgabe) and work (Werk). RAK will be revised in the near future as RAK2 with a conceptual framework based on AACR2, clearly defined bibliographical concepts on literary units and compatibility with RAK-WB
- Date
- 29. 8.1997 18:58:16
-
Agata, T.: ¬A measure for evaluating search engines on the World Wide Web : retrieval test with ESL (Expected Search Length) (1997)
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Midorikawa, N.: ¬A discussion of the concepts of facets from the viewpoint of the structures of classification systems (1997)
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- Abstract
- 2 concepts of facets have been used in studies of classification systems: one for systems which take hierarchical structure and the other for systems which take multidimensional structure. Both correspond to 'principles of division'. The concepts of facets in multidimensional structure systems is used for addressing a subject from many aspects so should equate to the broadest principle of division in order to grasp a multiplicity of aspects. The concept of facets used in hierarchical systems addresses only the significance of a coherent set of items. This concept is not distinguished from the principle of division and there is no purpose in introducing a concept of facets into hierarchical systems in addition to the principle of division
- Source
- Annals of Japan Society of Library Science. 43(1997) no.3, S.117-128
-
Oshiro, Z.; Kaji, K.: ¬A survey of Japanese Internet OPACs (1997)
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- Abstract
- Reports a survey conducted in April 1997 of 136 Japanese WWW and Telnet OPACs from the persepctive of their functions and user interfaces. These included: types of searchable files; access points; kinds of displays; login commands; search methods; Boolean operation; help functions; search history; and browsing of indexed terms. Results indicate a sharp rise in the number of WWW OPACs and problems with the provision of functions and user interfaces by Japanese WWW OPACs
- Source
- Annals of Japan Society of Library Science. 43(1997) no.3, S.103-116
